The Sea Hag

(1988)(The first book in the World of Crystal Walls series)A novel by David Drake

Dennis flees the crystal walls of Emath when he learns the truth behind the city his father rules. The jungle enfolds him, tests his sword arm with monsters and his courage with nightmares more terrible than any monster. Sword and spirit can win Dennis a princess - but he can overcome the final evil only at the risk of all he has become - and his soul besides.